Machine for comparing and classifying record cards



Sept. 16, 1952 K. A. KNUTSEN 2,510,736

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MACHINE FOR COMPARING AND CLASSIFYING RECORD CARDS Flled Dec 17, 1946 Patented Sept. 16, 1952 MACHINE FOR COMPARING AND CLASSIFY- ING RECORD CARDS Knut Andreas Knutsen, Paris, France, assignor to Compagnie des Machines Bull (Societe Anonyme), Paris, France, a French company Application December 17, 1946, Serial No. 716,796 In France February 19, 1945 Section 1, Public Law 690, August 8, 1946' Patent expires February 19, 1965 8 Claims. 1

The present invention relates to improvements in record card controlled machines and more particularly to machines for making a comparison of items located on the cards and filing of said cards according to, the results of the comparison.

Such machines, wherein the items which are recorded on cards as perforations may be compared after the analysis of the perforations by an electrical device orany other suitable device, are well known. Registering or data receiving devices, permitting retention of items analyzed on the card in view of subsequent comparing operations are also well known. However, these data receiving devices as well as the data comparing devices were, in machines known heretofore, mostly mechanical in operation.

The present invention proposes to reduce the numbers of mechanical members and thus to facilitate adjustment, increase the speed and re duce the wear of the machine.

'An object of the invention is to provide a registering device, or data receiving device consisting essentially of a series of electrical relays, which when energized effect an analysis ofthe items to be compared and close contacts, by means of which said items may be transferred to the data comparing device.

Another object of the invention is a data comparing device essentially composed of relays, the moment of energization of which determines the positioning of contacts designed to translate the results of the comparison.

A still further object of the invention is a perforated record card machine utilizing such registering and data comparing devices and adapted to file the cards in a certain sequence.

The hereinafter described mode of. execution illustrated in the accompanying drawings, permits the comparison of items perforated ontwo groups of cards, one of which comprises cards designated as secondary cards, which are to be filed among the cards of a first group, which will be designated as primary cards. The machine is provided with two card hoppers for the primary and secondary cards respectively. From these hoppers the cards are moved along two tracks, a primary track and a secondary track, by corresponding feeding devices. The starting of one of these devices requires the energization of a primary or secondary magnet related thereto. Each track is provided with separate analyzing devices whereby the items to be compared may be entered into data receiving devices. The latter are divided into registering units which correspond each to a column of the card or to a digit to be recorded. The items analyzed on a card by a determined analyzing device are recorded, and this record is retained until the corresponding feeding device is started again, so that a new card may be analyzed by the analyzing device tacts.

in question. The data receiving device is electrically connected with the data comparing device which, however, may also be controlled directly from the analyzing device; the items which are being analyzed by one of the analyzing devices, may thus be compared with the items which are being analyzed by another analyzing device or which have previously been analyzed and then recorded. p The data comparing device is divided into comparing elements each of which corresponds to a pair of columns to be compared- The result. of the comparison parity of the two items or superiority of either item, is expressed by the establishment of one of three circuits. This circuit alone or in combination with other circuits-established by succeeding comparisons, may cause the starting of either or both feeding devices,'the ejection of the cards in a determined receptacle, and eventually the detection of an error' in the card sequence or the stopping of the machine. Further features and characteristics of the present invention will appear from the following description and the accompanying drawings which show by way of example, one mode of realization of the invention. I

In the drawings: H I Fig. 1 is a schematic perspective view of the driving mechanism of the machine. i

Fig. .2 is a schematiclongitudinal vertical section of the machine. p

Fig. 3 shows a rotary commutator, some parts being omitted for the sake of comprehension.

Fig. 4 is a section of a commutator, taken on lines C--D of Fig. 3. I

Fig. 5 is a section of the same commutator, taken on lines AB of Fig. 3.

Fig. 6 is a part of the electric diagram of the machine showing a registering unit of the data receiving device. v

Fig. '7 is another part of the diagram, showing two comparing elements. I Figs. 8a and 8b taken together form anelectric circuit diagram of the machine. v

Fig. 9 vis a timing. diagram for thecam con- In order to facilitate an understanding"offthe Figs. 8a, 8b, and of the following description," the meanings of certain abbreviatia references are given hereafter:

"Ar: Machine stopping circuit.

Ann. Rz": Cancellation of zeroizing circuit.

Ent.: Registering or storage circuit.

A. P.: Primary card feed magnet and related circuit.

"E. A. 8.: Secondary card feed magnet and related circuit.

Sel. P: Primary card selection magnet and circuit.

"Sel. S: Secondary card selection magnet and circuit.

The secondary cards are stacked in the upper or secondary hopper 355, Fig. 2, provided with a picker 351 which picks the cards one by one for each cycle at the beginning of which the magnet EAS, Fig. 1, is energized. Each card is thus pushed between the rollers of the secondary feeding device which move said card beneath the secondary brushes BSI and BS2, Fig. 2. Likewise, the primary cards stacked in the lower or primary hopper 356, are picked up one by one by picker 358, after energization of magnet EAP, and moved by the primary feeding device beneath the primary brushes BPI and BP2. An ejecting device common to both card tracks, which has its rollers in constant rotation, leads the cards from rollers I49 and I56, Fig. 2, towards four receptacles IOI to I04. A flap controlled by magnet Sel. P directs the primary cards to the receptacle IOI or to the receptacle I02. Likewise, the secondary cards are directed, through a flap controlled by magnet Sel. S, to either of the receptacles I83 and I04. A defiector I05 positioned by hand, makes it possible to direct into the receptacle I03, the cards which would have normally been ejected into the receptacle I02.

The drive of the machine will now be described. The motor I, Fig. 1, drives, through a belt 6', a pulley 2 which drives the main shaft 1 through gears 4 and 5. On said shaft is fixed a gear I4 which drives the general impulse emitter 41 and the cam shaft 23 respectively through gear 22 and gears I5, 9, 8. On shaft 23 are fixed the so-called general cams CGI CGIZ which close the corresponding contacts as shown in Fig. 9.

Each cycle of the machine corresponds to one revolution of the main shaft and comprises 16 points, that is sixteen times the time elapsing between the passing of two consecutive perforations' in front of the analyzing device.

It should be noted with reference to the Fig. 9 that the machine is stopped in a position corresponding to one of the two extreme vertical lines of the diagram.

On shaft 1, Figs. 1 and 2, are fixed the rotary parts of the commutator I6. Gear I4 drives through gears I5 and I1 a shaft IS on which are fixed the rotated parts of two other commutators 20 and 2|. The primary shaft 3| is driven by the main shaft 1 through a well known one-revolution clutch controlled by magnet Whenever magnet EAP is energized, its armature 28 releases a pawl 24, fixed on a disc 30 fixed on shaft 3|, so that said pawl. engages, urged by a spring 21,, in a notch 2.6 of a disc 25 fixed on shaft 1, whereby the primary shaft performs one revolution.

The primary shaft 3| drives, through wormwheels 34 and 35, the shaft 36 which in turn, drives through gears (not shown) picker 358,.

4 Fig. 2, feed rollers 39, 49, 53, 65, H with their corresponding press rollers and contact rollers 44 and 59. All these parts are actuated only at such cycles hereinafter designated primary cycles, at the beginning of which magnet EAP has been energized.

Further, the primary shaft 3|, Fig. 1, carries a gear wheel 15 which drives the primary impulse emitter 11 and the primary cam shaft I2, respectively through gear 16 and gears 54, 55. Shaft I2 carries cams CPI to CPI4 which close corresponding contacts as shown in Fig. 9.

A one-revolution clutch 32 of the hereabcve disclosed type, controlled by magnet EAS, Fig. l, permitsv the main shaft I to drive a secondary shaft 33 which assumes the shape of a sleeve.

This shaft 33 carries a gear which, through a gear 98, drives the shaft 89 on which are fixed the secondary cams CSI to CSI4 which close corresponding contacts as shown in Fig. 9. Further, the secondary shaft 33 carries a gear 94 which through gear 96, drives shaft 01 which, in turn, through gears I08 and I0! drives shaft I08. The latter drives through gears I08, III), the secondary impulse emitter III. Further, shaft I08 drives, through gears (not shown) picker 351, rollers ||4, I30, I24, Fig. 2, with their corresponding press rollers and contact rollers 681 and I35, all these parts constituting the secondary feeding device which is actuated only at such cycles hereinafter designated secondary cycles, at the beginning of which magnet EAS has been energized.

The main shaft 1,. Fig. 1, drives further, through worm wheels I38, I39, the shaft I45 which through gears (not shown) drives the ejecting rollers I59, I58, I65, I49, I44, I12, I18, I83, I89, I94, MI, 206, 2II, 2I3, Fig. 2, with their corresponding press rollers. Said ejecting rollers are constantly driven directly from the motor, as long as the latter is rotating.

The drive of the primary feeding device is such that a primary card picked by picker 353 during a primary cycle passes beneath brushes BPI during a second primary cycle and beneath brushes BPZ during a third primary cycle. Then the card is moved by rollers 55 and 1| during the fourth primary cycle, at the end of which said card is seized by the ejecting roller I49 and moved independently from the energization of magnet EAP, towards the receptacles |0I or I02.

The drive of the secondary feeding device is such that a secondary card picked by picker 351 during a secondary cycle, is moved beneath brushes BSI and BS2 during the second. and third secondary cycles. At the end of the third cycle, the card will be seized by the ejecting roller I59 and moved independently from the energization of magnet EAS, towards one of the receptacles I03 or I04.

The registering or data receiving device will now be described with reference to the diagram, Fig. 6. This device comprises a certain number of registering units, each unit being susceptible of being connected to a card column in which is perforated an item to be recorded. This connection is made through a unit of the rotary commutator, whereby the brush assigned to analyze said column may be successively connected to each of the different relays constituting the registering unit. Each commutator I6, 20, 2|, Fig. 1, is constituted by a certain number of commutator units, twelve in the described example. All commutators being alike, commutator I6 only will be described with referenceto Figs. 3, 4 and. 5.

- *Shaft 1, Fig. 3, carries twelve pairs 61 mm carriers I9, 80 insulatedfrom the shaft and from one another, by a sleeve 8 I' of insulating material provided with a flange 86. To each of said brush carriers 19,80 are fixed by means of screws 82, 83,'Figs. 4 and. 5, a brush 84," 85.- -The two brushes of the same unit are electrically connected by screws 81, 88, Figs. '3 and 4, which extend through the flange 86 of sleeve 8|. The latteris keyed to shaft I which causesth'e'rotation of the brushes, performing one revolution per cycle of the machine.

Bearings I3, I4, Fig. 2, in which is rotatably mounted shaft I, hold the two halves I95, I96, Figs. 3, 4 and 5, of a cylinder made of insulating material, the inside of which is provided with twelve circular metal strips 605, Figs. 3 and-5, fixed to the cylinder by screws 280. On each strip bears the left-hand brush 84, Fig. 3, of 'a commutator unit. Moreover, the inside of the cylinder is provided with twelve rows each of twelve contact segments 63I, Figs. 3 and 4,regularly spaced on three quarters of the circumference'and successively contacting, while the index point positions 9 to 0, 11 and 12 of a card are being analyzed, with aright hand brush 05, 3, of a commutator unit. To each strip 605 is screwed a plug socket I99 and to each segment 63I a plug socket 260.' Thus for each commutator unit, during e'achcycle, an electric connection is successively made between each plug socket 260, Figs. 3 and 4, and the plug socket I99, Figs. 3 and '5, said electric connection'being made therefore between the electric organs connected to -said sockets by contact plugs 215, 216.

In Fig. 6, serving to explain the operation of the data receiving device, all that is represented beneath plug socket 602 and to the left of line 262 belongs to a registering unit, the connections to the right of plug socket 602 being considerably simplified with respect to Fig. 8a. In the electric diagrams the contacts controlled-by a relay are designated by the number of said relay, followed by a letter a, b, c All contacts controlled by a cam are designated by a number preceded by two letters C. G., C. P., or C. S. according to whether the cam is carried by a general, primary or secondary cam shaft. Fixed connections have been represented in full lines whereas the connections to be established by the operator have been represented in dotted lines. The contacts in operative position have also been represented in dotted lines.

Let it be assumed that an item analyzed on a secondary card by a brush GM of the row of brushes BS I, has .to be-recorded in the. registerin unit. shownin Fig. 6. To this end, brush 6! is connected to the plug socket 602 of said unit, by means of a plug connection 624. Thecontact segments 63I for the values 9 to 1 are connected to correspondin magnets 6 by wires 275. The contact segments'for the values 0, l1 and 12 are not used in the case of a numerical registering device as herein described; they are used in the case of an alphabetical registering device. Plug socket 602 is connected through plug socket 663, closed contact 32Ia and wire 266, with the strip 605 of the same commutator unit.

When a determined perforation, for example a perforation 4, is analyzed by brush60l, the following circuit is established: Line 608 Fig. 6, brush'623, contact roller'60'I, analyzing brush 60 1. plug connection sz4,;p1ug sockets 602, 603, contact 32'Ia,'wire 266,'contact plug :16, Figs. 3, 5 I

and 6, strip 605, brush 84,. screw '86, Figs. 3 and Gjbr'iish 85', contacts'egment 63I for. the value 4,

or the next secondary cycle. As longas the secondary' feeding device is not started, an electric circuit is established for each cycle at the point 40f said cycle, between plug socket 662 and line 608, as follows: Line 608', contact CSI3, line 262, contact 6I Ia for the value 4, corresponding wire 215 corresponding contact segment 63I, brush 84, screw 88, Figs. 3 and 6, brush 05, strip. 605, lug socket 662, Fig. 6. As long as no card passes beneath the brush 60I in question, an impulseis therefore received for each cycle at plug socket 662, said impulse being the same as that which would be emitted by the analysis of a perforation "4.

If magnet EAS' which controls the feeding of said secondary card is energized, the card is fed, contact CS I3 opens, magnet 6H for the value4 is "dc-energized and the corresponding contact 6 I la is opened. The registering device is thus reset to zero, in condition to receive a new item perforated on the next card. Other items analyzed in differentcolumns of the card are recorded in corresponding registering 'units in the same way. There are fifteen registering units for secondary cards and fifteen also for primary cards, operating in similar fashion. The diagram.

for a primary unit is the'same as that shown in Fig. 6, except that contact CPI3 must be substituted for contact CSI3. A unit of each denomination has been shown in Fig. 8a.

Instead of a relay for each digit, a smaller number of relays might be used, each impulse energizing a determined combination of said relays. Instead of a single brush for each column,

a number of brushes or sensing organs, one for each index point position in a column, might be utilized, thus making'it possible to dispense with the commutator.

The data. comparing device will .now be described with; reference .to Fig. '7. This figure shows two comparing elements, each permitting the comparison of two digits in corresponding columns of two cards. neath plug sockets 6I2, 662 and to the left of line 26I belongs to said comparing elements, the other connections being considerably simplifiedand better understood by reference toFigs. 8a and 8b.

The comparison of items is effected bydetermining the order of succession of the timed electric impulses to which the analysis of said items gives rise, irrespective of whether this analysis be made directly from the card or subsequent to the recording in the registering device. Each comparing element comprises two similar sections; one of these sections is connected by plug connection 629 to the plug socket .6I2 of a corresponding registering unit, the other is connected by plug connection 628 to the plug socket 662 of another registering unit. Each of the plug sockets 6I2,,662, for instance plug socket 662, is therefore connected, at a certain moment of .the cycle, to -line 608, either through the analyzing brush, I and contact 32 la, Fig. 6, when theassociated feeding device'is operated, or througha contact. 6I Ia and the commutator when said feeding device is at rest. Each-section of the All that is represented beda'tac'omparin device comprises a relay 240, 24! which is connected at one side to plug'socket 238, 239, and at the other side to the line606. Each relay comprises; an alternative set of contacts, the middle: contact points of which 299, 299 are connected together by a wire 291. When. magnets. 240 and 24! are energized, contact points 298 and 299 make contact with the'lower contact points. 294 and 296 and when magnets 240 and 24'! are not energized, said contact points 298 and 299' make contact with the upper contact points 293 and 295, which are both connectedto line 638' through the closed contact 25211. and the contact of the general impulse emitter 41. Contact: points" 294- and 296 are eachv connected, through one of the normally opened contacts 244a and 246a, to a relay 252 common tovv both sections of the comparing element. Further, contact, points 294'and 296 are respectively connectedto relays 244,245 and 246, 241. The four relays 244 to 241 are connected to. line 606 and relay 252 is connected to line 608, through cam contacts CPM and CSI4. Relays 245v and 241 each control a set of alternative contacts 245a and. 241a. In the normal position of. the con tacts, plug socket 623 is connected to line 606 through the: contacts 245a, 241a of each comparing element, plug connection 6 l5 and cam contact (2G4.

The data comparing device operates as follows. When one of the plug sockets H2, 662 is connected to line 608, as has been described hereabove i'or plug socket 662, the following circult is established: Line 606, relay 240 or 24!, plug socket 238. or 239, plug connection 628 or 929, plug socket 612 or 662,,supply line 608. The energization of relay 240' or 24! determines the shiftingof contact point 298 or 299.

It will be first assumed. th'atithe column of the primary card connected to plug socket. 6!2, contains a perforation the value of which is. higher than that of the. corresponding column of the secondary card connected to plug socket 662. Therefore the circuit corresponding" to plug socket 6!2 is closed first, and magnet 240 is energized before magnet 24!. Contact point 298 is shifted as shown in dotted lines in Fig. '7, whereas contact point 299 remains in its normal position shown in full. lines. The following circuit is established: Line 608, contact of the impulse emitter'41, contact 252a, contact points 295, 299, wire 291, contact points 298, 294, relays 244 and 245, 111145606. The energization of relay 244 causes Contact 244a to close, which insures the energization= o'i' relay 252 and the holding of the energi'zation of relays 244, 245 and 252 through the following circuit: Line 608, contacts CS!4 and CP!4', relay 252, contact 244a, relays 244 and 245, line 606. The energization of relay 252 causes the opening of contact 252a. When, later in the same cycle, an impulse from the secondary card is transmitted to the data comparing device, a circuit is established, extending through line 606, relay 24!, plug socket 239, plug connection 626, plug socket 662 and line 608. Th contact point 299 is shifted but the opening of contact 252a, prevents the energization of relays 2'46, 241. At the end of the cycle, contact 245a only will be in shifted position which, when contact CG4 is closed, will establish a connection between line 608 and plug socket 624 instead of plug socket 623. The establishment of said connection indicates the result of the comparison. The energization of relays 244,. 245 and 252 and the positioning of the corersponding contacts are 8 maintained until one of the cam contacts CPI4 and CS!4 is opened, that is until one of the feeding devices is. started. The holding circuit is then broken, all the contacts resume their normal positions and the data comparing device is reset to zero in condition to proceed to the comparison of two new items.

In the case when the item recorded on the secondary card has the higher value, relay 24! is energized first, the contact point 299 is shifted and relays 246, 241 are energized. Contact 246a maintains the energization of relays 246, 241 and 252 until one. of the feeding devices is started. A subsequent energization of relays 244, 245 is prevented by the opening of contact 252a. This result" is indicated by a connection between line 608 and plug socket 625.

In the case when the two compared perforations have the same value, relays 240 and 24! are energized at the same time, their middle contact points are shifted simultaneously and none of the relays 244, 245, 246, 241 can be energized. Therefore contacts 245a and 241a remain in normal position and the connection between line 606 and plug socket 623 is established at the end of the cycle. A small inaccuracy in the simultaneous shifting of both contact points 298 and 299 does not involve energization of relays 244, 245 or 246, 241, because of the impulse emitter 41 the contact times of which are substantially shorter than the contact times of. the impulses transmitted to relays 240 and 24!.

Thus according to whether an item. contained in a card column connected to plug socket 236 is higher than, smaller than or equal to an item contained in a corresponding card column connected to plug socket 239, one'of the plug sock.- ets 624, 625 or 623 respectively will be connected to line- 606 when contact CG4 closes. By connecting plug sockets 623, 624, 625 in the here inafter described way, the result of the comparison may control the operationof the machine.

Usually it is desired to effect a comparison of the values of several digits perforated in several columns of each of two cards. In this case, the two columns for the units, the tens, the hundreds, etc., are simultaneously compared. The connection of the contacts 245a,241a of each comparing element is so made that for the columns in which a difference is discovered, the result is determined by the column corresponding to the highest denominational order. In the example illustrated in Fig. 7, the columns for the tens should be connected to the right-hand comparing element and the columns for the imits to the left-hand comparing element. It is obvious from an inspection of Fig. '1 that the positioning of the contacts 245a and 241a of the units comparing element is exploited only when there is parity for the tens, that is when. the contacts 245a and 241a of the tens comparing element are both in normal position. To prevent undue exploitation of the positioning of certain contacts before all of said contacts are positioned, said exploitation is rendered dependent upon the closure of contact 0G4 at the end of the cycle.

It may be observed that it is not necessary to previously record the items to be compared, as the comparison might well be effected between two consecutive cards fed by the same feeding device. Plug sockets 238, 239 would then be connected directly to the corresponding brushes of the feeding device in question.

The operation. of the machine will now be described more in detail, with reference to Figs. 8a and 8b. In this diagram the connections between all relays and; line-606 have not been rep resented for the sake of 'clearnessof the diagram, but it is to be understood that said connections exist. All relay contacts are represented in the position which they occupy when the corresponding relays are not energized, all cam contacts being represented in the position which they occupy when the machine is at rest.

The motor having been started, the operation of the machine may be initiated by depressing key M, Fig. 8a, which energizes relay 301, through the following circuit: Line 608, contact Ml, relay 30!, line 606. This energization is maintained through contacts CPI, CSI and 3010, as long as no feeding device is started. The energization of relay 30! closes contacts 30lb and 3010, whereby, when contact CG4,closes, magnet EAS is energized through the following circuit: Line 608, contacts M2, 3011), 303a, CG4, 3010, Fig. 8b, 321d, closed as no card is as ,yetbeneath brushes BS2 as will be later explained, contact 3030, magnet EAS, line 606. The energization of magnet EAS causes. the coupling of the secondary card feeding device and a secondary-card is fed until its foremost edge lies slightly before brushes BSI.

, During its movement, the card rocks a lever which closescontact CCSI, Fig. 8a, whereby relay 326- is energized and held by contacts 326a and CS4 or by contact CCSI as long as cards are run in the secondary feeding device.

There are three other similar card contacts CCS2, CCPl and CCP2 which are closed slightly before acard passes beneath brushes BS2, BF! and BP2, thereby causing the energization of the corresponding relays 321, 324 and 325.

, As the contacts of the data comparing device between the primary and secondary cards, indicate a parity, a circuit is'established through said data comparing device, whereby, if an appropriate plug connection has beenestablished as later described, magnet EAP- is energized. The primary feeding device is then started simultaneously with the secondary feeding device and a primary card is moved until slightly before brushes BPI. r

, During each secondary and primary cycle and as long as contacts 3 I Be and 3 150 are closed, relay 32l or 3! is energized when the respective contact CSI2 or CP|2 closes.

When contacts CSI and CPI open, relay 30I is de -energized, contacts 30lb and'30lc open and magnet EAS is ie-energized. Magnet EAP is also de-energized.

The depression of key M a second time, causes in the same manner the starting of the primary and secondary feeding devices. When aperforation of the secondary card passes beneath the brush 601 of the row of brushes BSI, the followingcircuit is established: Line 608, cam contact CSfi-or C S1,'contact of the secondary impulse emitter Ill, contact 3261) now closed, brush 623, contact roller 601, analyzing brush 60l, plug connection 624, plug sockets 602, 603, contact 32|a now closed, strip 605, Figs. 6 and 8a, brushes 84 and 85, contact segment 63l corresponding to the value of the perforation, corresponding magnet 61 I, line- 606. Contact 6| la maintains the energization of relay 6 and permits the recording of the analyzed item. I

Simultaneously with the analysis of the perforation; a comparison takes place. As the registerin units. connected to the primary brushes are empty; there'is a'secondary superiority and if a 10 suitable plug connection has been made, as will be later described, magnet, EAP is energized whereby the primary feeding device is started for the next cycle. During this cycle the first pri-- mary card passes brushes BP2 and the recording of anitem, for instance in a registering unit connected to thebrush M0, is effected by a circuit similar to that described for the brush 60!.

If a comparing element has been connected by plug connections 628, 629 to the registering units connected to brushes 6M and 6I0,'a comparison is effected between the item previously recorded by brush 60! and the item which is being analyzed by brush 6 l 0. According to the result of the comparison, one of the plug sockets 384, 385-, 386, Fig. 8b, of this comparing element is connected, when contact CG4 closes, to line 608, through plug connection 656, one of the plug sockets 6l0, contact'CG4, Fig. 8a, 303a, 3210, 3260, 302b, 3250, 3240. Moreover plug sockets384, 385, 386, Fig. 8b, are connected through plug connections 311, 318, 4319, respectively to plug sockets SI P2, SI=P2 and Sl P2.

If it is desired to simultaneously compare two items perforated in a column of two consecutive primary cards, the corresponding brush N5 of the row of brushes BPI, Fig. 8a, should be connected by plug connection 626 to a section of another comparing element 393 whereas the corresponding brush 610 of the row of brushes BP2 should be connected by plug connections625, 621 to the other section of the same element 393. No recordingshould be effected as the analyzed items are compared cnceonly. The plug sockets 381, 388, 309, Fig. 8b, of the comparing element 393. Fig. 8a, are connected by plug connections 360, 38!, 382, Fig. 8b, to plug sockets -PI P2, 'P I=P2, PI P2. g If it is desirable to simultaneously compare two secondary cards, plug sockets SI S2, SI= S2, SI P2 should be connected by plug connections (not shown) to the plug sockets of the comparin elements to which the different columns to be compared are connected.

As a result to the establishment of said plug connections, when contact CG4, Fig. 8a, closes at the end of each cycle, certain of relays 328 to 344, Fig. 8b, are energized, according to the results of the comparisons effected during said cycle. Relays 328 to 344, Fig. 8b, are divided into nine groups, each group corresponding to nine possible resultsof comparison between two primary cards, two secondary cards or a primary card and a secondary card. The energization of one of these groups of relays causes one of thecorresponding contact groups 328a, 328 b to 3430, to close, whereby when contact CG5 closes, a connection is established between line 608' and one of the groups of lines 36l to 312.

When a primary card is comparedwith a secondary card, the detection of a parity between the two cards or of a superiority of the primary card or of the'sec'ondary card, results in the energization of relays 335, or 339 or 334. The closure of one of the contact groups 335a, 3351), 3350 or 3300., 339b, 3390 or 334a, 334b, 3340, insures, when contact CG5 closes, the establishment of a connection between line 608 and one of the groups of lines 365 or 369 or 364. V

Likewise, when the comparison is to be effected between two primary cards or two secondary cards, the energization of one of relays 330, 328,

332 or 342, 343, 340 determines, by the closure of corresponding contacts, the establishment of a connection between line 608 and one of the groups of lines 362,36l, 363 or 31!, 312, 310. Contact 324d which opens when no more cards pass beneath brushes BPI, is designed to prevent undue; operation of the organ of exploitation corresponding to the result PI P2, when the last primary card passes beneath brushes BP2. Contact 326d plays the same part for secondary cards.

When it is desirable to effect two simultaneous comparisons, one between two primary cards passing beneath brushes BF! and BP2 and the other, between a primary card and a secondary card passing respectively beneath brushes BP2 and BS], and when a parity occurs between said last named cards, the operation of different organs should be initiated according to the result of the comparison between the two primary cards. When P2=Sl and P2=P|, the energization of relays 331 and 33! by closing contacts 331a, 331b, 3310 and saw, 33"), 33|c determines the establishment of a connection between line 608 and V the group of lines 361. Likewise, when P2=SI and PI P2 or when P2=S| and Pl P2, the energization of relays 336 and 329 or 338 and 333, determines the establishment of a connection between line 608 and the group of lines 368 or 368, through the corresponding contacts.

It may be desired to eject certain cards in a special receptacle. To this end, said cards are provided with a perforation 11 in a certain column. The analyzing brush correspondingto this column is connected by plug connection 630, Fig. 8a, to plug socket 620 as shown for a brush 63| of the row of brushes BS2. At the point 11 of the cycle in which the card passes beneath brushes BS2, the following circuit is established: Line 600, contact CS6, contact of the impulse emitter Ill, contact 321b, contact roller I35, plug connection 530, plug socket 620, contact CG|0 closed at 11, relay 304, line 806. The closure of contact 304a causes the energization of magnets 306 and 301 by the following circuit: Line 608, contact 304a, relays 306 and 301, line 606. This energization is maintained by contact 306a until the openingof cam contact CS3 or 0P3, that is until one of the feeding devices is started. The energization of relay 301 causes contacts 301a, 301b, 3010, Fig. 8b, to close,'whereby a connection is established between line 608 and the group of lines 313.

The same result may be obtained under the control of two perforations 11 simultaneously analyzed in two diiferent columns of the same card or of two different cards. To this end, the analyzing brushes corresponding to these columns should be connected respectively to plug sockets 62! and 622, Fig. 8a. When said perforations 11 are analyzed and because of the closure of contacts CGII, CGIZ'at 11, the two coils of relay 305 are energized simultaneously and the two contacts 305a and 30517 are closed at the same time, which permits the energization of relays 306 and 301, and the establishment of a connection, when contact CG5 closes, between line 608 and the group of lines 313.

For all cycles, line 314, Fig. 8b, is connected to line 608 when contact CG4 closes.

The groups of lines 36| to 314 which have just been described, may be connected, 'by plug connections 4 to 548 to lines EAP, Ann Hz '8: Enr, EAS, Ar, Sel. P and Sel. S connected themselves to hereinafter described relays, controlling various organs of exploitation of the machine. Line EAP, Fig. 8b, is connected through the normally closed contact 3032) to magnet EAP which, when contact CG5 or CG4 closes,

maybe energized by. a circuit extending through one of the contacts 32811 to -30% and the corresponding plug connection =4, 42! '53.] or directly through line 314 and plug connection 54!; The primary feeding device is thus started for the next cycle. The same result may be obtained by depressing key MP.

Likewise, magnet EAS may-be energizediby a circuit extending through one of the contacts 328a to 3010 and a corresponding plug connection 413, 423 .533, or M4, 424.. 534, or directly through line 314 and plug connection 543 or 544. The energization of magnet EAS causes the starting of the secondary feeding device for one cycle. The same result may be obtained by depressing key MS. Line Ar" may be connected through a plug connection 642 or 643 to a double coil relay 308 or 309. If the plug connection 843 has been made, the coil 309A of the double coil relay 309 may be energized at the end of a cycle. either through one of the contacts 328a to 3010, and the corresponding plug connection M5, 426 535, or directly through line 314 and plug connection '545.

The energization of coil 309A closes contact 309a, whereby the second coil 3098 is energized by the following circuit: Line 608, contacts 6G8, 305a, relay 309B, line'606. The energizationxof coil 309B is maintained until contact CG8 opens. Until then, contact 309b, Fig. 8a, remains closed, whereby,'when contact CG9 closes, the following circuit is established: Line 608, contacts 309b, CG9, relay 302, line 006. The energization'of relay 302 is maintained by contact 302a until contact M2 is opened by depression of key M. Once the next comparison is effected, the opening of contact 30211 prevents the exploitation of this comparison, by breaking the connection between plug sockets 619, Fig. 8b, and line 608. Magnets EAP andEAS cannot therefore be energized and the machine is stopped.

The same result may be obtained, a cycle later, by the establishment of plug connection 642 instead of plug connection 643. This stop may also be caused by depression of key A, Fig. 8a; relay 302 is thus energized when contact CGS closes.

Line Sel. P, Fig. 8b, may be connected through a plug connection 644 or 645 to a double coil relay 3l0 or-3H. If plug connection 645 has been made, the coil 3| IA of the double coil relay 3| I may be energized at the end of a cycle, either through one of the contacts 326a to 3010 and a corresponding plug connection M1, 421 531 or direct through line 314 and plug connection 541.

The energization of coil 3IIA closes contact 31m, whereby the second coil 3| IB is energized and held until the opening of contact CPIO, that is, until the beginning of the next primary cycle. If relay 3l1 is not energized at this time, magnet Sel. P is energized when contact CPI I closes arid the primary card is directed to the receptacle I01, Fig. 2. However, if the plug connection 429, Fig. 8b, has been established and if the result recorded in the cycle concerned is P2=Pl, the coil 311A of the double coil relay 311 is energized upon closure'of contact (3G5. The closure of contact Sl'la insures the energization of the second coil'3l1B which is held by the following circuit: Line 608, contacts CPIO, 3lla, CPH, 3l1a, coil 3I1B, line 606. Contact 3I1b is'opened and the energization of magnet Sel. P is prevented.

If instead of plug connection 645, plug connection 644 is made, the energization of magnet Sel. P is delayed for one cycle. 'Line Sel. '8"

13 ma be connected through a plug connection 646 or 641 to a double coil relay 3l2 or 3l3. If plug connection 641 has been made, the coil 3I3A of the double coil relay 3l3 may be energized at the end of a cycle, either through one of the contacts 32 8a to 3010 and a corresponding plug connection M8 to 538, or direct through line 314 and plug connection 548. 7

The energization of coil 313A closes contact me, whereby the second coil 3l3B is energized and held until the opening of contact CS8 during the next secondary cycle. The closure of contact SCIO during'this cycle determines the energiza-. tion of magnet Sel. S by the following circuit: Line 608, contacts CS8, 3l3a, CSIO, magnet Sel. S, line 686. The secondary card is thus ejected into the receptacle I04.

To eject in the receptacle I64 a group of suc-. cessive secondary cards bearing the same group number, plug connection 641 is replaced by plug connection 646. As a. result to the analysis of the group number of the first card of a new group, one of the contacts 34la or 344a1is closed and relay 312 is energized, whereby coil 3l3B is energized and thus magnet Sel. S, as described. Further, relay 3|4 is energized and held by contacts 341b, 34 1b and 31411, that is, as long as successive cards bearing the same group number are moved past the secondary brushes. The energization of magnet Sel. S is thus caused for each cycle by a circuit extending through contacts CS9, 3l4b,

GS'I I.

If it is desired to select detail cards bearing a given classifying datum determined by a first master card. said classifying datum is stored in a storage device during the whole operation.

Forthis purpose line Ann Rz & Enr may be connected bya plug connection 648 or 649 to a double coil relay 315 or 3l6. If the plug connection 648 has been made, the coil3l5A of the double coil relay 3| *may be energized at the end of a cycle, either through one of the contacts 328a to 3611: and a corresponding plug connection M2, 422 532 or direct through line 314 and plug connection 542.

The energization of coil 315A closes contact 3l5a, whereby the second coil3l5B is energized and held until the opening of contact CP2 during the next primary cycle. The energization of relay 3l5 has two consequences. In the first place contact 3 l5b, Fig. 8a, is closed, which prevents, at the beginning of thenext primary cycle, the resetting to zero of the data receiving device, which resetting would have been obtained by the opening of cam contact CPI3. In the second place, contact 3 I is opened, relay 318 is de-energized, contact 3 I 8a is opened and the data receiving device cannot record a new primary item during the next cycle. v

If plug connection 649, Fig. 81), has been made, the same result may be obstained for the secondary data receiving device, by means of contacts 3l6a, .b, c, and relay 32| with its contacts. If it occurs that the last card of a batch of primary cards has just passed under the sensing brushes and that secondary cards are still to be compared, the secondary card feeding mecha nism will stop, ascontacts 3240 and 3250 open upon deenergization' of relays 324 and 325. By closing the switch P (Fig. 8a) shunting said contacts, and since contacts 3260 and 3210 are still closed due to the presence of secondary cards on the secondary card track, the machine is permitted to resume its proper operation, that is, feeding secondary cards and effecting their com-- '14 parison with'data stored'in the primary storing device.

Likewise, if it occurs that the batch of secondary cards is exhausted before that of primary cards, the closing of switch S permits the machine to continue its operation as described.

Ll and L2 indicate the position of electric lamps arranged in a circuitv to be lighted when I the machine has stopped'in the cases which have just been mentioned.

. The hereabove description of the operation of the machine shows that the nineresults of the comparison, alone or in combination, permit, due to plug conections 4 to 528 and 642 to 649, control of the seven devices corresponding to magnets EAP, EAS, Sel. P, Sel. S, 382, 3I5 and 3!6 under varying conditions, said devices being capable to be also controlled'as a result to the analysis of a perforation l 1 due to the establishment of plug connections 53! to 538 or for each cycle of themachine, due to the establishment of plug connections 54! to 548.

While I have described what I deem to be practical and efficient embodiments of my invention, it should be well understood that I do not wish to belimited thereto as there might'be changes made in the arrangement, disposition and form of the parts without departing from the principle of my invention as comprehended within the scope of the appended claims.

1 It'will be seen from the foregoing description that the machine described herein is capable of performing a number of useful operations, the more important being set forth below in summary formwith reference to the electrical circuits and.

the cconnections necessary in each instance to effect a particularone of the operations.

I. collating or merging of two batches of cards previously filed. Connections to be made: .Plug connections such as 624, 625 between brushes BSI, BP2 and'terminals of the storing devices such as 602 (Fig. 8a). Plug connection SIG running from terminal 6I9 on line 314 (Fig. 8b).

, Plug connections 311, 318, 319 respectively between terminals 384, 385, 386 and terminals SI=P2, SI P2, S| P2, so as to complete, through the alternative contacts of the comparing elements an energization circuit for one of the relays 334 to 339 inclusive, plug connections 44! to 491 inclusive to the line .EAP and plug connections 443 to 493 inclusive to the line Fl-AS for completing an energization circuit for magnets EAP or EAS in order to operate one of the two card feed mechanisms according to the result of the comparison. For actuating the primary feed mechanism for instance, said circuit may be as follows: Line 698, cam contact 0G5, one set of the contacts 334a, b, c 339a, b, 0,

one groupof the conductors 364 369, one of the plug connections 4 49!, line EAP," contact 303b, magnet EAP, ground to line 608. II. Verification of the filing order for a pack of cards (for instance only primary cards) with stopping of the machine in case of error. Plug connection 626 from brush BF! and plug connections 625, 621 from brush BP2 for completing the comparing circuits (Fig. 8a). Plugconnection 615 from terminal 6l9 on line 314 (Fig. 8b), plug connections 380, 38!, 382 respectively between terminals 381, 388, 389 and ter-- 42l or 4H to the'line "EAP according to the chosen order .of filing for completing the energizing circuit of the magnet EAP as previously described and actuating the primary card feed mechanism in case of correct filing.

Plug connection 15 and 425 or 435 to the line A.r".according .to the chosen terminals representing erroneous filing, plug connection .643 between line Ar and the relay 309A for completing an energizing circuit of said relay and causing the stopping of themachine in the same cycle .as the comparison occurs, as previously stated. For causing the stopping of themachine one cycle later, replace the plug connection 64-? by plug connection 642.

III. Selecting cards bearing a special indicative hole. v In the secondary batch of cards, for instance.)

Plug connection E between brush BS2 and terminal 620 (Fig. 8a) for completing the analyzing circuit by the relay 304. Plug connection 548 between line 3'14 and line Sel. S (Fig. 8b), plug connection 64.! between line Sel. S and relay 3513A for immediate selection. In column 11 it was stated in which manner the energization of relay 334 (Fig. 8a.) causes the contacts 381a, 'b,.c (Fig. 8b) to be closed. The closing of these contacts permits the completion of the energizingcircui't of the relay 1313A, which itself causes thecompletion ofa circuit for the -magnet Sel. S through contacts 3l2a.

1V. Selecting duplicate cards, "for instance from a primary batch of cards.

cPlugconnection 625 irom'brush BPI to a comparing element 393 and plug connections 625, 621 from brush BB2 to the second terminal of the comparing element -393 (Fig. 8a), plug connection 5| 5 from terminal 619 on line .314 (Fig. 8b) plug connections 389, 381, ,382 respectively between rterminals 381, 388, .389, and terminals P.I=P2, Pl P2, Pi P2 for completing an energizingcircuit for one of the relays .328 333 inclusive.

Plug connections 4.2! or 43! to line BAP to permit the feedingof single cards, plug connection All to line Sel. P and plug connection 645 iromjine Sel. P to relay 3| lA, for permitting the 'energization of relaySel. P in a manner similar to that described in case III, and causing the selection of duplicate cards at once. For selecting duplicate cards one cycle later, plug connection 645 should be replaced by plug connection 6.44.

-;V. Selecting detail cards bearing indicative data, following a master card, on the primary track, for instance.

Plug connections as stated in case IV, and plug connection 5 22 from line 314 '(Fig. 8b) to line ,Ann, Rz et Enr. plug connection 648 from line iAnn. Rz et Enr. to relay magnet 3|5A.

.Qwing to these plug connections, it follows that, ,after the sensing and registering of the master card, the storing device related to the comparing element 393, cannot, neither be reset to zero nor receive other data during the following cycles on account of the closing of contact 3l-5b-and of the opening of contact 3150, as stated incolumn 13.

,What I claim is:

;1. :In a cyclically operable machine for comparing and classifying records, primary and secondary-record feeding devices, for feeding separate groups ofiprimary and secondary records, primary andsecondary record analyzing devices associated respectively to the said primary and secondaryrecord feeding devices, for analyzing 16 items recorded on successive records, primary and secondary storage means comprising each a plurality of storage relays, one storage relay for each item from 1 to 9, comparing means comprising primary .and secondary comparing relays, means comprising a commutator and an electric circuit connecti-ngsaid primary record analyzing device with said primary storage means for the operation during a cycle of the machine of a storage relay corresponding to an item analyzed, a branch circuit in parallel with said electric circuit for the simultaneous operation of the said primary comparing relay, means comprising said commutator for the operation of the said primary comparing relay a second time during a second cycle, means comprising a second electric circuit and a second commutator operative during said second cycle upon the analysis of an item on a secondary record for the operation or a storage means relay in the secondary storage,

and a second branch circuit including the said secondary comparing relay, and means for controlling the operation of the-machine according to :the relation between the times of energization of said primary and secondary comparing relays during said second cycle.

,2. In a cyclically operable machine for comparing and classifying record cards, primary and secondary feeding devices for feeding separate groups of primary and secondary record cards, primary and secondary analyzing devices associated respectively to said primary and secondary feeding devices, for analyzing items recorded on successive .record cards, storage means comprisinga plurality of groups of storage relays, one group for each item from 1 to 9 and each provided .with electric contacts, a commutator, circult comiections between said commutator and said primary analyzing device on one hand and said storage means .on the other hand for the operation during a cycle of the machine of a storage relay corresponding to an item on a primary record card, and including holding means for said relays, comparing means comprising a pair of first comparing relays and a pair of second comparing relays, each pair consisting of a primary and .a secondary relay, reading out meansicomprising said electric contacts andsaid commutator for the operation of the primary relay of said first comparingrelays during a second cycle of the machine, means comprising said secondary analyzing device for the analysis of a second item on a secondary record card during said second cycle and for the operation of the secondary relay of said pair of first comparing relays, a two direction selecting contact being alternatively included .in the energizing circuit ofsaid primary second comparing relay and said secondary second comparing relay under the control of said pairof first comparing relays, according to therelation between the times of energization .of said .firstcomparing relays during said second cycle, holding means for either of said second comparing relays thus energized, and means operative according to which of said second comparing relays has been energized, to indicate the result of I the comparison.

.3. In a cyclically operable machine for comparing and classifying record cards, primary and secondary :feeding devices for feeding separate groups of primary and secondary record cards, p-rimary'and secondary analyzing devices associated respectively to said primary and secondary feedingdevices, for analyzing items recorded on successiverecordcards, storage means comprising a plurality of groups of storage relays, one

group for each item from 1 to, 9 andprovided with electric contacts, a commutator, circuit con nections between said commutator and said primary analyzing device on one hand and said storage means on the otherhandfor the operation in a cycle of the machine of a storage relay correspondingto an item analyzed and'including holding means for said relays, comparing means comprising a pair of first comparing relays and a pair of second comparing relays, each pair consisting of a primaryanda'secondary relay, reading out means comprising said electric contacts and said commutator for the operation of the primary relay of said first comparing relays during a second cycle of the machineQmeans com prising said secondary analyzing device and'operative'upon the analysis of a second item on a' secondary record carddu'ringsaid second cycle, for the operation of the secondary relay of said pair of first comparing relays, a two direction selecting contact being alternatively'included in the energizing circuitiof said' primary second comparing relay and saidsecondary second comrelays; has been energized, to indicate-the resultof the comparison.

4. In a machine for comparingand classifying record cards, primary and secondary feeding devices for feeding separate groups of primary and secondary record'cards, primary and secondary analyzing devices associated respectively with said primary and secondary'feeding devices for analyzing items recordedon successive record cards, primary and secondary storage means comprising respectively a'-plurality of primary and secondary storage relays arranged in groups, one group for each denominational order of said items and comprising one storage relay for each digit from 1 to 9, electric circuit connections between said primary analyzing device and a primary storage means for the operation of those of said storage relays which correspond to said item, holding circuits for said primary and secondary storage relays, reading out means for subsequently reading out an item thus accumulated, comparing meansfor comparing an item thus read out with an item analyzed on a secondary record card by said secondary analyzing device, means depending upon the result of the comparison for automatically starting either or both feeding devices, and means for resetting to zero of the corresponding storage means comprising primary and secondary resetting contacts controlled respectively by said primary and secondary feeding devices and included respectively in the holding circuits of said primary and secondary storage relays upon starting of one of said feeding devices.

5. In a machine for comparing and classifying record cards, primary and secondary feeding devices for feeding separate groups of primary and secondary record cards, primary and secondary analyzing devices associated respectively to said primary and secondary feeding devices for analyzing items recorded on successive record cards, primary and secondary storage means comprising respectively a" plurality oi primary and secondary storage 'relaysarranged in groups, one group foreach denominational order of said items and comprising "one storagei'relay for eachv digit from lfto 9, electric circuit connections including saidprimary analyzing device and a primary storage means for theloperatio n of those of said relays 'which correspon'd to said item, holding. circuits for said primary and secondary storage relays, reading out. meansfor subsequently reading out an item thus stored," comparing means for comparing an item thus read out with anitem'analyzed on a secondary record card by said secondary analyzing device, means depending upon theresult of thecomparison for automatically starting either or .both feeding devices and'meansfor re'settin'gto zero of the corresponding storage means upon starting of one of said feeding devices, said means compris ing primary and, j secondary resetting contacts "controlled'respectivelyb-y said primary and secondary feedingv devices and included respectively in'the holding circuits of said primary and secondary storag'e relays, and electric contacts operated according to the result of the comparison to shunt said resetting contacts and prevent said resetting. i I 1 6. In a cyclically operable machine for comparing and classifying record cards, storage means comprising a plurality of electromagnetic storagerelayseach allocated to a'difierent possible value of card item, an analyzingdevice for analyzing during a cycle of the machine an item recorded on a record cardcomprising an electrical generator producing pulses timed in the cycle of the machine and corresponding to the analyzed item, electriccircuitconnections for the operation by one'of said pulses of one of said I storage relayscorresponding to 'ananalyzed item and for holding the selected relaydn operated setting, commutator means for reading out the setting of the storage relays during a second cycle of the machine by the production of a pulse timed to correspond to said" setting, 'means for comparing 'said setting thus read out with a pulse resulting from the analysis in said second cycle of an item recorded on another card, said comparing means comprising-a pick-up relay and a holding relay associated with said storage relay set from said first record card, aypick-up' relay and a holding relay'both associated with the analyzing means for said other card, said pick-up relays being energized bythe item representing pulses whatever may be the relative timing of said pulses delivered under control of said storage and said analyzing means, a pair of holding contacts, each controlled by one of said holding relays, an additional relay completing through one of said holding contacts when closed a holding circuit for the corresponding holding relay, said additional relay, when energized, opening a contact included in a double controlling circuit controlled by said pick-up relays and common to both said holding relays thereby preventing the energization of one holding relay as a result of an item representing pulse when the other holding relay has been previously energized device for analyzing a multidenominational item I recorded on a card, comprising a device for the production oi a', timed electrical entry pulse for each denominational order of said item, storage meanscompris'infg a plurality of groups of electric'releysfeach groupjotstorage relays corresponding' to one denominational order of said item, each relayfirr each'storage group corresponding to a'dii'fe'reiit timing oi said entry pulse, el'ectriecir'ciut connections comprising a plurality of contacts each of which being under'the control ofone of said storage relays, a plurality of commutator elements each allocated to a group of storage relays,jeach of said commutator elements haying corresponding electric segments being adapted to produce electric pulses timed to corresp'onq'tp the said entry pulses for the reading out of the item thus stored, means for cor'ripia rin'g, separately ior each denominational orderQthe'pulies corresponding tothe' item thus readout withthenulses resulting from the analysisof an itm on a second card, said comparing means comprising for each denominational order of the 'coinpaieditemsa pair of pick-up,

relays energized by the item representing pulses emitted hysjaid storage means and said analyzing means, whatever may be the relative timing of said pulses, a pair of holding relays, each controlled by one oi said pick-:up, relays, a pair of holding 'c'ontacts'ea ch controlled by one of said holdingrelays, an additional relay completing uponj'opejratioii oi one of said holding contacts, a holding'ciricuit, for theco'rresponding' holding relay, said additional relay, 'wh'en energized, operating a Contact in a controlling circuit common'to both said holding relays,v said controlling circuit permitting during a comparing cyclethe energiiation only one of said holding"relays in case oi" item representing pulses nonksimultaneous and the energization of none of said holding relays in case oi'item representing pulses simultanebus'and electric circuit connections controlled by'said holding relays for reading'out the'relatio'nship betweenthe timings of said item representing pulses.

8. Ina machine. for. 'c ompa ri'ng and classifying record cards in accordance with items recorded on cards moved in succession through the machine, storage means for. storing an item derived from one card; storage, means for storing anitrii derived from anothe'r'card. said storage means comprising a plurality or groups of storage relays; each group. corresponding to one denomimaqna b ide's: we i 'so p o 26- z s n on s or rie l r-each i i lue om 1,. '9. a 'plurality' i qn ast each mnvr d by o e o ei' z to e e a s. ommuta or.

means 'cooperating with said storage relays either for Selecting th r er em r senting s orage relays 'or'i'or' rea'cling'out the previously established settingjof sai'distor'age relays; comparing means'for comparing anitem derived iron; said one card and stored in the corresponding storage means up jn'th storineoianlitem deriv d from said other card, said comparing means comprising for each denominational. Or'derof the items to'be compared, apair or D1I;-.upjreldys,electricj circuit connections for fiee'ding said. pick-.upl

relays with itemslrepre'sentiiig fp'ulsesj when the items to be comparedare being'storedin or read out from saids'toragenieans'irrespective of the. relative timing-oijsaid item representing pulses,.

a pair of holding relays each controlledjby one of said pick-up relays through a controlling :ir-. ouit, a pair of holding contacts each controlled.

byone of said holdihgrelays, an additional relay completing, through one of said holding contacts. when closed, a holding oi rcuit'for the correspond,- h lfdine re a s'id ditiona relay; whe ner iz s o e a ons r bates? nfluded n a d ntro lin s rq it mnog bo h said 119 41 1: la s, he ehr. mer e ins. the momen a y ener zat qn I nehe qins relay in: n i em crem m ns Pul e hen. 9th r holding rel x has,

be n Prev u ner is d imin th same c ok Daring cycl and .el qtriq ir uit oonns iqns and. es'c rollecl b sai h din e ay tor read ing out the relationship betweenthe items being ad ou a dtored.

WREAS NU EN- REFEREFQESQITED- The following references are of record in the file of this-patent:

NI E STATES PA'I' N S- 

